Dry battery



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DRY BATTERY H. M. KRTZKY Filed June 3Q,- 192,0

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Patented Jan. 27, 1925.

PATENT OFFICE.

. HARRY M. Komm, or NEW Yonx, N. Y.

(DRY BATTERY. i

Application filed June 30,. 1920. Y Serial No. $972,927. i

To all 'whom z't ma concern: f

Be it known that HARRY M. KoRETzKY, a citizen of the United States, and resident of the city of New York, borough of Manhattan, county and yState of New York, have invented a new and Improved Dry Battery, of which the following is a full, clear, and exact description.

My invention relatesto dry batteries, and aims to provide-a device of this'character which shall present a` construction permitting of the production of a. dry battery em odying numerous improved qualities.

It is well understood by wholesalers and retailers of dry batteries that although a battery may not be placed in use, i. e. current rawn directly from the same, that a certain amount of re-action is continually occurrin within the cells which results in a rapid deterioration of the same; so much in fact that after a certain length oftime a battery will have to be discarded although the same has never been subjected to any use.

wahthis in minar@ 'will readily be ppreciated that a most desirabletype of battery from both the dispensers and consumers point of view, would be one Ain which no current might be given'of, or no re-action capable of taking place until the same was to be used. f

It is further understood that the conventional insulatin compound utilized in connection with t e" upper central electrode terminal is expensive in application, and is subject to vcracking and other numerous defects, aside from'the fact that ofttimes the terminal will be displaced in a plying the non-insulating compound so that the electrode will not be exactly in line with the contact point of the consuming element, resulting in a poor contact.

With these defects in mind, 'I have constructed a dry battery in which loss of current and deteriorationdue to chemical reaction of the elements within the same is pre-eluded until the same-is to be applied to a consumin element with which it is to be associate A further object of my invention is the construction of a battery in which the central electrode terminal will be properly held, and insulated without danger of the same becomlng displaced, at the same time reduclingthe cos't of manufacture to a minimum.

eference is had to the attached sheet of drawmgs' as illustrating practical embodiments of my invention, and in which drawm cell.

Fi re 3 illustrates the battery in condition or use.

:A: Figure 4 is a sectional view showing my ignproved method of mounting a central electrode and terminal thereof, and prior to manipulation of the parts of the cell` toY their active position.

Figure 5 is a similar view showing the parts subsequent to this movement.

Figure 6 illustrates the method of producing one of the finished parts.

Figure 7 is a sectional end view taken along the lines 7-f7 of Figure 2, and

Fi re 8 4is a sectional view of a slightly modified form of cell. In these views the reference numeral 10 indicates a housing of insulating material, it being noted that the same is formed with an extended separate portion 11 for a purpose hereinafter more fully s eci'ledfr In the usual manner layers o any suitable insulating material 12 form the upper surface of the battery throu h which layers the central electrode termina 13 projects, which terminal. may conveniently be provided with an associated. brass cap 14.

Secured to the lower end of this terminal is a depolarizing core forming one of the energizing unit of the battery, which corepreferably includes` a container 15.

The second Venergizing unit is com osed of a zinc cup 16 retained within the ousing 10 and extended portion of the same, so that the upper edge of the cu is spaced from the lower face of the insu ating material 12. e

Prior to the adoption of the second enerlgure 1 is a side view of a battery conof the side walland base of thecup 16.

Subsequent to this, thematerial contained Wihin the cup is subject to either artificial yor natural heat drying of any desirable type,

and the plunger removed after this has been accomphshed.

By virtue of the fact that practically all of the fiuid forming a partof the pastey originally placed within the cup 16 has been evaporated by this treatment,. it will beappreciatedthat upon the plunger 17 being removed, that a skin 18 composed of the solid particles going to formfthe paste will.

remain in position against vthe inner face of the container 16, this container being subsequently applied to the parts forming the balance of my battery as has'been clearly shownin Figure 2.

It will readily be understood that' by virtue of this construction that no chemical re-action or deterioration of the battery may take place or that any current will be produced with in inv a position indicated in this ligure.

enit is now desired to use a battery, it will be obvious that the cup 16 may be withdrawn from the housing 10, and the portion 11 of the latter may now be discarded. A certain amount of water is placed within the $516, and it will be obvious that .this fluid quickly result in a dissolving of a suflicient amount of the skin 18 to produce an emulsion which, upon the parts vbeing re- -assembled in the manner illustrated in Fig-` ure 3, i. e. the cup lbeing moved to a po-` sition at which it is intimate contact with the upper face of the insulating material 12, that the battery will become-active.

' It will also be understood .that it might be desirable to provide a certain means preventing any accidental telescopng of the partsfprior to the time at which the battery 1s to be put into active service, and with a view of providing a more desirable type of insulating member the construction shown in Fi re 4 may be adopted. In this figure it wi readily be seen that the -housing 10 is constructed `in lthe usual manner, .it bein noted, however, that ctrary to the usua construction which provides a layer of insulatingmaterial,l such as 12,that I conveniently utilize a washer 19 of any desirable material, embodying sealing, insulating and preferably lexible qualities, through which the terminal 13 extends.-

It is to be noted, however, that in this construction. hat a cap 2O is provided, which isformd a centrally opening in the same upon the parts be 21 of a diameter larger than that of the electrode 13 so that any contact between these two members is pre-cluded.

The ca is formed with a downwardly extending ange 22 which is of a diameter sufcient to permit of its lintroduction into the cup 16, and which is further" provided with an outwardly struck portion 23 normally adapted to rest against the upper edge of the cup 16 and to revent any accidental movement of one oi) these members with` respect to the second of the same.

It will be understood that the operation ofthe battery, as illustrated in Figures 4 and 5' is identical with the battery shown in Figures 1f'to 3, i. e. the skin 18 is emulsiied, an

upon the cap being telescoped with reof this skin, it will be appreciated that an active battery is formed.

Finally, it will be understood that any desirable means for combining the parts of the battery may be employed, and with this in mind, I have illustrated a sli htly modified form shown in Figure 8, in wich the flan 22 of the cap is threaded, the screw threa s of the same engaging the screw threads 24 formed in the inner face of the cup 16, it being obvious that upon the cap4 being turned down that a, combining action wil result producing the desired result.

Obviously numerous modiiications of structure might be resorted to without in the least departing from the spirit of my invention.

I claim-- 1. A dry battery, including a casing, a

normally inactive element arranged within said casin a second element' comprising the solid particles of an emulsion also arranged within Vsaid casing and u n the inner faces thereof, said casing being adapted to be opened to permit the introduction of water into the same whereby to emulsifythe solid articles of said latter. element, and to proilce an active battery.

2. A dry battery, including a casing, a normally inactive element arranged within said casing, a second element comprising the solid particles of an emulsion also arrange within said casing and upon the inner faces thereof, means permitting of the introduction of fluid into said casing to emulsiy said'solid particles, and means permitting of the subsequentmoving of said elements into intimate contact.

3. A dry battery, including a housing of insulating material formed in two sections, a cup within said housing, an element of said battery supported by the upper end of said housing, t e upper edge of said cup bein normally spaced from the inner face of sai end portion, one of the sections of said housing being adapted to be discarded, said cup subsequently moving inwardly withiny the diameter smaller than the saine, an element provided With a terminal of a diameter subsequently equal to that of the insulator opening, Sad terminal being adapted to project through said opening and a second element associated with said cup.

HARRY M. KORETZKY. 

